Engine.



J. H. EBERSOLE.

WJTNESSES; [Nl/ENTOR Ebermsom,

lomeya J. H. EBBRSOLE.

ENGINE.

APPLIOATION FILED 00T. 6,1909.

998,284, Y Patented July 18,1911.

`a SHEETS-Bamm' 2.

WIT/1155555.' 1 [Nl/ENTOR 1J, H- Elbe-PSM@ I By 4 Jl H. BBERSOLE. ENGINE. Arnlurrxou FILED 00T. 5,1909.

998,284. 1 Patented July 1s, 1911.

3 SHEETS-SHEET 3.

v INVENTOR WITNESSES' J. j-. ,E bersol,

JOHN H. EBERSOLE, OF WASHINGTON, DISTRICT F COLUMBIA.

ENGINE.

Specification of Letters Yatent.

Application led October 6, 1909. Serial No. 521,361.

Patented July 18, 1911.

To all whom 'it may concern:

Be it known that I, JOHN H. Ennnsonn a citizen of the United States, residing at Washington, District of Columbia, have invented certain new and useful Im rovements in Engines; and I do hereby eclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it applertains to make and use the same.

i y invention relates to new and useful improvements in engines, and more particularly to that class known as two cycle engines and adapted to be used for propelling vehicles and my object. is to provide an engine of this class whereby the cylinders will rotate around a stationary shaft.

A further object is to so construct the piston driving pitmen that all of said pitmen may be operated from a single crank.

A further objecty is to provide auxiliary chambers iai the casing of the engine, whereby the gas'employed for operating the engine may be compressed and forced from one Chamber into the cylinder at the opposite side of the engine.

A further object'is to provide suitable means for conveying the gas into the cylinders.

A still further object is to provide suitable ports whereby said cylinders may be connected in pairs and a further object is to provide means for igniting the contents of the cylinders to cause explosion.

Other objects and advantages hereinafter' referred to and more larly pointed out in the claims.

In the accompanying drawings forming part of this application, Figure 1 is a trans- 0 verse sectional view through the engine.

Fig. 2 vis a sectional. view as seen on line =2-2, F ig. 1, showing the housing for the engine removed, and, Fig. 3 is a horizontal sectional view as seen on line 3-3, Fig. 1.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, l indicates the casing of the engine, which casing is provided with tubular extensions 2, 3, 4 and 5, the outer ends of said extensions having peripheral flanges 6 to receive the peripheral flanges fl' of the cylinders 8, 9,

"10 and 11, which coperate with the extensions 2, 3, 4 and 5, `respectively, said cylinders being removably attached to the extenwill be particu sions by introducing bolts or the like 12 through said flanges.

Extending vertically through the casing l is a shaft 13, the lower end of the shaft having a cross head 14 which is embedded in the base 15 of a housing 16, said cross head being secured to the base by means of bolts or the like 17, thus holding the shaft in fixed relationship with said housing. That portion of the shaft 13 extending through the casing 1 is provided with a crank portion 18 to which are att-ached the inner ends of pitmen 19, 20, 21 and 22, which are adapted to operate pistons 23, 24, 25, and 26, said pistons coperating with the cylinders 8, 5), 1() and l1, respectively and it will be readily seen that as the shaft 13 is held stationary, the rotation of the casing and cylinders around said shaft will move the'pistons into and out of the cylinders. The upper end of the shaft 13 is entered into a seat 27 in the base portion o'f a driving shaft 28, said driving shaft being fixed tothe vasing 1 and extended upwardly through the upper wall of the housing 16 and to said upwardly extending portion of the driving shaft is to be attached any suitable form of means for connecting the engine to the parts of the vehicle, whereby said vehicle may be driven.

It will be understood of course that the shaft 13 and driving shaft 2S may be turned end to end, whereby the drive will be below the engine instead of above the same, the operation of the parts being otherwise identical.

The extensions upon the casing 1 are greater in diameter than the diameter of the cylinders attached thereto, so that when the pistons are moved inwardly, auxiliary chambers 29, 30, 31` and 32ers formed between the inner faces of said extensions and the outer faces of Said pistons and into said auxiliary chambers is introduced the gas from the carbnreter pipe 33. After the gas has entered the auxiliary chamber, the return stroke of the piston will compress the gas therein andr when ythe piston has` completed its inward stroke, it will force said gas so compressed through the ports into the other cylinder. l

The cylinder 8 is connected to the auxiliary compartment 31 through .a pipe or port 34, While the auxiliary .chamber 29 is connected to the cylinder l0 through the medium of a pipe 35, while the cylinder 11 is connected to the auxiliary chamber 30 through the medium of a pipe 36 and the cylinder 9 to the auxiliary chamber 32 through a pipe 37 and the auxiliary chambers are provided with ports 3S, 39, 40 and 41, respectively, which are successively moved into registration with a port 42 in a disk 43, the end of the pipe 33 communicating with the port in said disk.

The inner ends of the pistons are provided with auxiliary heads 44, 45, 46 and 47, re-

spectively, which auxiliary heads are adapt` ed to fit the interior of the extensions 2, 3', 4 and 5, respectively, and act as pistons therein, the pistons 23, 24, 25, and -26 having packing rings 48, 49, 50 and 51, respectively, while the auxiliary heads are also provided with packing rings 52, 53, 54 and 55, respectively, which rings are constructed in the usual or 'any preferred manner and prevent leakage of the gases around the pistons and heads.

The disk 43 is held in frictional engagement with a ground face 56 on the casing and is held against rotation by introducing stud bolts 57 through the base 15 and into sockets 58 in said disk, the disk being firmly seated against the ground face by introducing sprin s 59 around the stud bolts between sai base and disk.

In operation, supposing the parts to be set as shown in the several views, the live gas-will be entering through the port 38 into the auxiliary chamber 29, while the 'gases` previously taken into the auxiliary chamber 31 Will have been compressed and forced through the pi' e 34 into the cylinder 8 and as said gas is orced into the cylinder 8, the piston 23 will have completed its inward stroke and uncovered the exhaust port 60, the live gas being directed to the upper end of the cylinder 8, by the delector 61, thus forcing the exhausted gas through said exhaust ort 60. At the same time that the gas is lieing discharged into the cylinder 8, the piston 25 will have moved to its outward stroke and, the charge in the cylinder 10 exploded in the usual or any preferred manner, the sparking plug 62 bein connected to the usual or any preferre form of eommutator'or s arker through lwires 63, each of the cylin ers being provided with a plug and wire so that when they are successively brought into engagement with the distributer of the commutator, a spark will be directed into said'cylinder and the charge ignited. The piston 24 at the time th. 1pistons 23 and 25 are in the position shown, will be moving' outwardly, thereby compressing the charge of gas in the cylinder 9 and the charge of gas in the auxiliary chamber 30, while the piston 26 will be moving inwardly and cause a vacuum in the auxiliary chamber32, whereby when the I cylinder 9 has moved to the position now occupied by the cylinder 10, and the cylinder 11 to the position occupied by the cylinder 8, the piston 24 will have reached its full outward stroke and the piston 26 its full inward stroke, whereupon the gases compressed in the auxiliary chamber 30 will be discharged through the pipe 3G and into the cylinder 11., the exhaust port in said cylinder being likewise uncovered and permitting the exhaust gas to escape. As the cylinders rotate, the posts 64 to which the Wires (33 are attached, are successively brought into cooperation with the brush 65 carried by the housing 16, said brush being connected to the commutator (not shown) through the medium of a wire G6 and as said brush is located in such position as to operate the plugs to canse a spark when the cylindersl reach the point now occupied by the cylinder 10, the charges in all of said cylinders will be exploded when they have reached this particular point.

By mounting the cylinders in a horizontal position and causingV the same to rotate around the shaft ,13, said cylinders will be self-cooling, as well as form a balance wheel, thereby dispensing with the heavy balance Wheel now employed and it will further be seen that by compressing the air in the auxiliary compartments, V,instead of taking the same direct from the carbureter or from the crank case, the `rases will be more readily entered in the cy1inde1"s,'thereby obtaining a more perfect` feed of the gases. It will further be seen that by taking the gases through the auxiliary compartments instead of through the crank case, the.objectionable feature of providing stufiip boxes will be obviated and the gases wi be prevented from escaping, as is the case in the present form of engine. It Ywill likewise be seen that by entering the gas into the cylinders as shown, the back fire resulting from low pressure or improper mixture of the gases will result in no damage as the port to the mixing chamber is closed at the time of entering the charge into the cylinder.

What I claim isz' 1. A gas engine com rising a casing having a plurality of tubular extensions arranged in pairs of diametrically opposite members, a flange on the outer extremity of each of said tubular extensions, flanged cylinders of less diameter carried by the tubular extensions, the flanges of said c linders abutting the Ranges of said tubu ar extensions, a piston sliding within each of the cylinders, said pistons havin enlar ed inner portions sliding within t e tubu ar extensions and forming auxiliary chambers around tlie'pistons when the pistons are moved inwardly, a. shaftl extending through the casing, a crank carried by said shaft and connectedy to said pistons, an intake port in each of said' tubular`extensions, a pair of pipes connecting the ila esof opposite tubular-extensions, one en of one pipe communicating with the auxiliary chamber of one tubular extension and the same end of the other pipe with the cylinder on the same tubular extension, the opposite ends of said pipes communicati respectively, with the cylinder and' auxilary chamber, diainetrically opposite the first cylinder and auxiliary chamber, a.,h"ousi,ng for said casing and cylinders, means carried by the housing to control the supply of fuel to the tubular extensions and means for igniting compressed charges Within the cylinders.

2. In a gas engine, a housing, a casing rotatably mounted in the housing, tubular extensions arranged in pairs of diametrically opposite mem ers and integral with the casing, a flange on the outer extremity of each of said tubular-extensions, flanged cylinders of less diameter having their flanges abutting the flanges of the tubular extensions and secured thereto, a shaft passing through the housing and the caslng, a piston in each cylinder having an enlarged portion sliding Within the tubular extension and forming an auxiliary chamber around the piston when the iston is moved inwardly, a crank carrie bythe shaft and connected to the several pistons, a common inlet port carried by thefhosf ing, an inlet port in each of said tubular extensions, said inlet -ister with the inlet ort carried by the housing and receive charges of gas therefrom, means to convey the charges of s -from the auxiliary chamber of one tubu ar extension to the cylinder diametrically opposite said tubular extension, mea s 1n each of the c linders adapted to ignite Vthe compressed cliarge therein and means carried by the housing adapted to operate said ignitlon means.

3. In a gas engine a stationary housing, a rotating casing within the housing, tubular extensions integral with the casing and arranged in airs of diametrically opposite members, cylinders of less diameter carried byisaid tubular extensions, a shaft passin through the housing and casing, a cran carried by said sha t, a' piston 1n each of the cylinders and connected to said crank, an inlet port in each of said tubular extensions, the inner end of each iston having an enlarged portion to fit the interior of the ders,

ports adapted to regl tubular extension, whereby an auxiliary chamber will be formed when the piston is moved inwardly, means t9 connect the auxiliary chamber of onegmember with the cylinder of the diametrically op osite member, the outward movement of trlie piston of one member forcing the charge of gas to the cylinder of the diametrically opposite member, an igniter carried by each of the cylina tlmer carried by the rotating casing, a plurality of contacts carried upon said timer, igniters carried by the cylinders, wires connecting each of said contacts with one of the ignlters and means carried by the housing adapted to be engaged by each of the'contacts to ignite the charge in each of the cylinders. A

4. The combination ina gas engine, of a stationary housing, a rotating casing within the housing com rising integral tubular extensions arrange in pairs of diametrically opposite members, cylinders carried by the tubular extensions, a piston in each of said cylinders, the inner ends of the pistons bein enlarged to fit the interior of the tubuir extensions, a shaft passing through the housing and the casing, a crank connecting the shaft with the pistons, a valve carried by the housing and comprising a spring pressed block provided with an inlet, having sliding contact with the outer face of saidl rotating casing, an intake port in each of said tubular extensions, the inlet in said block being adapted to successively register with the intake ports of the tubular extensions, means to convey the charge of gas from the tubular extension of one of a pair of opposed members'to the cylinder carried by the tubular member vdiametrically o posite, .a charge igniting means in each o1P the cylinders, on the inner wall of the stationary housing and means carried by the rotatingcasing adapted to contact with said electric contact carried on the stationary housing to successively ignite the charges of gas in the cylinders.

In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

JOHN H. EBERSOLE. Witnesses:

C. A. NEALE, A. D.

copies of this patent may be obtained for ave cents each, by addressing the Commissioner o! Patents, Washington, D. CL

the inner face of said blockan electrical contact' 

